Humble Bundle's third, pay-want-you-want indie games collection, "The Humble Frozenbyte Bundle," is now available from the official site for the next fifteen days. As the name implies, the new set features the works of Finnish developer Frozenbyte, including the platformer Trine and the top-down shooter series Shadowgrounds.

The bundle also includes a pre-order license -- no, not for Trine 2, but for Splot, a mysterious (yet adorable-looking) title that's still under development. Most intriguing, Frozenbyte has tossed in the source code for a canceled project called Jack Claw. According to Edge, the developer hopes to crowd-source the game to completion and offer it for free to everyone that helps.

Like past Humble Bundles, this one is DRM-free and -- with the exception of the Windows-only Jack Claw code -- all the games are available to download for PC, Mac and Linux. Additionally, purchasers are entitled to Steam, Desura and OnLive product keys for compatible titles, as well as the soundtracks for Trine and the Shadowgrounds games.

Oh! And how could we forget? Any two portions of your purchase can be donated to the Child's Play Charity and the Electronic Frontier Foundation, a public interest nonprofit that protects consumers' digital rights. Check out the Frozenbyte Bundle promotional video after the break to find out more about this most awesome offering -- or just go buy it already!

[Thanks, Luis!]

This article was originally published on Joystiq.